Migrate TimeSlot model.

program/migrations/0025_auto_20220728_1625.py

+# Generated by Django 3.2.14 on 2022-07-28 14:25
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("program", "0024_category_subtitle"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="timeslot",
+            name="is_repetition",
+        ),
+        migrations.AddField(
+            model_name="timeslot",
+            name="repetition_of",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="repetitions",
+                to="program.timeslot",
+            ),
+        ),
+    ]